Coinbase Breach Exposes Customer Data in Insider-Driven Attack, Hacker Demands $20M Ransom

Coinbase has confirmed a major security breach involving insider collusion, leading to the theft of sensitive customer data. The company disclosed the incident in a regulatory filing and blog post, revealing that a hacker used compromised support contractors to extract internal data — and later demanded $20 million in ransom, which Coinbase refused to pay.

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